mirror of
https://github.com/TombEngine/TombEngine.git
synced 2025-05-02 09:47:58 +03:00
781 lines
20 KiB
C++
781 lines
20 KiB
C++
#include "framework.h"
|
|
#include "los.h"
|
|
#include "animation.h"
|
|
#include "Sound/sound.h"
|
|
#include "objects.h"
|
|
#include "switch.h"
|
|
#include "lara_fire.h"
|
|
#include "input.h"
|
|
#include "effects/tomb4fx.h"
|
|
#include "effects/debris.h"
|
|
#include "Lara/lara_one_gun.h"
|
|
#include "items.h"
|
|
#include "setup.h"
|
|
|
|
int NumberLosRooms;
|
|
short LosRooms[20];
|
|
int ClosestItem;
|
|
int ClosestDist;
|
|
PHD_VECTOR ClosestCoord;
|
|
|
|
int ClipTarget(GAME_VECTOR* start, GAME_VECTOR* target)
|
|
{
|
|
short room;
|
|
int x, y, z, wx, wy, wz;
|
|
|
|
room = target->roomNumber;
|
|
if (target->y > GetFloorHeight(GetFloor(target->x, target->y, target->z, &room), target->x, target->y, target->z))
|
|
{
|
|
x = (7 * (target->x - start->x) >> 3) + start->x;
|
|
y = (7 * (target->y - start->y) >> 3) + start->y;
|
|
z = (7 * (target->z - start->z) >> 3) + start->z;
|
|
for (int i = 3; i > 0; --i)
|
|
{
|
|
wx = ((target->x - x) * i >> 2) + x;
|
|
wy = ((target->y - y) * i >> 2) + y;
|
|
wz = ((target->z - z) * i >> 2) + z;
|
|
if (wy < GetFloorHeight(GetFloor(wx, wy, wz, &room), wx, wy, wz))
|
|
break;
|
|
}
|
|
target->x = wx;
|
|
target->y = wy;
|
|
target->z = wz;
|
|
target->roomNumber = room;
|
|
return 0;
|
|
}
|
|
room = target->roomNumber;
|
|
if (target->y < GetCeiling(GetFloor(target->x, target->y, target->z, &room), target->x, target->y, target->z))
|
|
{
|
|
x = (7 * (target->x - start->x) >> 3) + start->x;
|
|
y = (7 * (target->y - start->y) >> 3) + start->y;
|
|
z = (7 * (target->z - start->z) >> 3) + start->z;
|
|
for (int i = 3; i > 0; --i)
|
|
{
|
|
wx = ((target->x - x) * i >> 2) + x;
|
|
wy = ((target->y - y) * i >> 2) + y;
|
|
wz = ((target->z - z) * i >> 2) + z;
|
|
if (wy > GetCeiling(GetFloor(wx, wy, wz, &room), wx, wy, wz))
|
|
break;
|
|
}
|
|
target->x = wx;
|
|
target->y = wy;
|
|
target->z = wz;
|
|
target->roomNumber = room;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int GetTargetOnLOS(GAME_VECTOR* src, GAME_VECTOR* dest, int DrawTarget, int firing)
|
|
{
|
|
GAME_VECTOR target;
|
|
int result, hit, itemNumber, count;
|
|
MESH_INFO* mesh;
|
|
PHD_VECTOR vector;
|
|
ITEM_INFO* item;
|
|
short angle, triggerItems[8];
|
|
VECTOR dir;
|
|
Vector3 direction = Vector3(dest->x, dest->y, dest->z) - Vector3(src->x, src->y, src->z);
|
|
direction.Normalize();
|
|
target.x = dest->x;
|
|
target.y = dest->y;
|
|
target.z = dest->z;
|
|
|
|
result = LOS(src, &target);
|
|
|
|
GetFloor(target.x, target.y, target.z, &target.roomNumber);
|
|
|
|
if (firing && LaserSight)
|
|
{
|
|
Lara.hasFired = true;
|
|
Lara.fired = true;
|
|
|
|
if (Lara.gunType == WEAPON_REVOLVER)
|
|
{
|
|
SoundEffect(SFX_TR4_DESSERT_EAGLE_FIRE, NULL, 0);
|
|
}
|
|
}
|
|
|
|
hit = 0;
|
|
itemNumber = ObjectOnLOS2(src, dest, &vector, &mesh);
|
|
if (itemNumber != NO_LOS_ITEM)
|
|
{
|
|
target.x = vector.x - (vector.x - src->x >> 5);
|
|
target.y = vector.y - (vector.y - src->y >> 5);
|
|
target.z = vector.z - (vector.z - src->z >> 5);
|
|
|
|
GetFloor(target.x, target.y, target.z, &target.roomNumber);
|
|
|
|
// TODO: for covering scientist
|
|
// if ((itemNumber >= 0) && (BaddieSlots[itemNumber].itemNum != NO_ITEM)) // BUGFIX: ensure target has AI. No more pistol desync and camera wobble when shooting non-AI movable objects.
|
|
// Lara.target = &g_Level.Items[itemNumber];
|
|
// this is crashing and it's not really doing anything..
|
|
|
|
if (firing)
|
|
{
|
|
if (Lara.gunType != WEAPON_CROSSBOW)
|
|
{
|
|
if (itemNumber < 0)
|
|
{
|
|
if (StaticObjects[mesh->staticNumber].shatterType != SHT_NONE)
|
|
{
|
|
ShatterImpactData.impactDirection = direction;
|
|
ShatterImpactData.impactLocation = Vector3(mesh->pos.xPos, mesh->pos.yPos, mesh->pos.zPos);
|
|
ShatterObject(NULL, mesh, 128, target.roomNumber, 0);
|
|
SmashedMeshRoom[SmashedMeshCount] = target.roomNumber;
|
|
SmashedMesh[SmashedMeshCount] = mesh;
|
|
++SmashedMeshCount;
|
|
mesh->flags &= ~StaticMeshFlags::SM_VISIBLE;
|
|
SoundEffect(GetShatterSound(mesh->staticNumber), (PHD_3DPOS*)mesh, 0);
|
|
}
|
|
TriggerRicochetSpark(&target, LaraItem->pos.yRot, 3, 0);
|
|
TriggerRicochetSpark(&target, LaraItem->pos.yRot, 3, 0);
|
|
}
|
|
else
|
|
{
|
|
item = &g_Level.Items[itemNumber];
|
|
if (item->objectNumber < ID_SHOOT_SWITCH1 || item->objectNumber > ID_SHOOT_SWITCH4)
|
|
{
|
|
if ((Objects[item->objectNumber].explodableMeshbits & ShatterItem.bit)
|
|
&& LaserSight)
|
|
{
|
|
//if (!Objects[item->objectNumber].intelligent)
|
|
//{
|
|
item->meshBits &= ~ShatterItem.bit;
|
|
ShatterImpactData.impactDirection = direction;
|
|
ShatterImpactData.impactLocation = Vector3(ShatterItem.sphere.x, ShatterItem.sphere.y, ShatterItem.sphere.z);
|
|
ShatterObject(&ShatterItem, 0, 128, target.roomNumber, 0);
|
|
TriggerRicochetSpark(&target, LaraItem->pos.yRot, 3, 0);
|
|
/*}
|
|
else
|
|
{
|
|
if (item->objectNumber != ID_GUARD_LASER)
|
|
{
|
|
item->hitPoints -= 30;
|
|
if (item->hitPoints < 0)
|
|
item->hitPoints = 0;
|
|
HitTarget(item, &target, Weapons[Lara.gunType].damage, 0);
|
|
}
|
|
else
|
|
{
|
|
angle = phd_atan(LaraItem->pos.zPos - item->pos.zPos, LaraItem->pos.xPos - item->pos.xPos) - item->pos.yRot;
|
|
if (angle > -ANGLE(90) && angle < ANGLE(90))
|
|
{
|
|
item->hitPoints = 0;
|
|
HitTarget(item, &target, Weapons[Lara.gunType].damage, 0);
|
|
}
|
|
}
|
|
}*/
|
|
}
|
|
else
|
|
{
|
|
if (DrawTarget && (Lara.gunType == WEAPON_REVOLVER || Lara.gunType == WEAPON_HK))
|
|
{
|
|
if (Objects[item->objectNumber].intelligent)
|
|
{
|
|
HitTarget(LaraItem, item, &target, Weapons[Lara.gunType].damage, 0);
|
|
}
|
|
else
|
|
{
|
|
// TR5
|
|
if (Objects[item->objectNumber].hitEffect == HIT_RICOCHET)
|
|
TriggerRicochetSpark(&target, LaraItem->pos.yRot, 3, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (item->objectNumber >= ID_SMASH_OBJECT1 && item->objectNumber <= ID_SMASH_OBJECT8)
|
|
{
|
|
SmashObject(itemNumber);
|
|
}
|
|
else
|
|
{
|
|
if (Objects[item->objectNumber].hitEffect == HIT_BLOOD)
|
|
{
|
|
DoBloodSplat(target.x, target.y, target.z, (GetRandomControl() & 3) + 3, item->pos.yRot, item->roomNumber);
|
|
}
|
|
else if (Objects[item->objectNumber].hitEffect == HIT_SMOKE)
|
|
{
|
|
TriggerRicochetSpark(&target, LaraItem->pos.yRot, 3, -5);
|
|
}
|
|
else if (Objects[item->objectNumber].hitEffect == HIT_RICOCHET)
|
|
{
|
|
TriggerRicochetSpark(&target, LaraItem->pos.yRot, 3, 0);
|
|
}
|
|
item->hitStatus = true;
|
|
if (!Objects[item->objectNumber].undead)
|
|
{
|
|
item->hitPoints -= Weapons[Lara.gunType].damage;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (ShatterItem.bit == 1 << Objects[item->objectNumber].nmeshes - 1)
|
|
{
|
|
if (!(item->flags & 0x40))
|
|
{
|
|
if (item->objectNumber == ID_SHOOT_SWITCH1)
|
|
ExplodeItemNode(item, Objects[item->objectNumber].nmeshes - 1, 0, 64);
|
|
if (item->triggerFlags == 444 && item->objectNumber == ID_SHOOT_SWITCH2)
|
|
{
|
|
// TR5 ID_SWITCH_TYPE_8/ID_SHOOT_SWITCH2
|
|
ProcessExplodingSwitchType8(item);
|
|
}
|
|
else
|
|
{
|
|
/*if (item->objectNumber == ID_SHOOT_SWITCH3)
|
|
{
|
|
// TR4 ID_SWITCH_TYPE7
|
|
ExplodeItemNode(item, Objects[item->objectNumber].nmeshes - 1, 0, 64);
|
|
}*/
|
|
|
|
if (item->flags & IFLAG_ACTIVATION_MASK && (item->flags & IFLAG_ACTIVATION_MASK) != IFLAG_ACTIVATION_MASK)
|
|
{
|
|
TestTriggers(item->pos.xPos, item->pos.yPos - 256, item->pos.zPos, item->roomNumber, true, item->flags & IFLAG_ACTIVATION_MASK);
|
|
}
|
|
else
|
|
{
|
|
for (count = GetSwitchTrigger(item, triggerItems, 1); count > 0; --count)
|
|
{
|
|
AddActiveItem(triggerItems[count - 1]);
|
|
g_Level.Items[triggerItems[count - 1]].status = ITEM_ACTIVE;
|
|
g_Level.Items[triggerItems[count - 1]].flags |= IFLAG_ACTIVATION_MASK;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (item->status != ITEM_DEACTIVATED)
|
|
{
|
|
AddActiveItem(itemNumber);
|
|
item->status = ITEM_ACTIVE;
|
|
item->flags |= IFLAG_ACTIVATION_MASK | 0x40;
|
|
}
|
|
}
|
|
TriggerRicochetSpark(&target, LaraItem->pos.yRot, 3, 0);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (LaserSight && firing)
|
|
{
|
|
FireCrossBowFromLaserSight(src, &target);
|
|
}
|
|
}
|
|
}
|
|
|
|
hit = 1;
|
|
}
|
|
else
|
|
{
|
|
if (Lara.gunType == WEAPON_CROSSBOW)
|
|
{
|
|
if (firing && LaserSight)
|
|
FireCrossBowFromLaserSight(src, &target);
|
|
}
|
|
else
|
|
{
|
|
target.x -= target.x - src->x >> 5;
|
|
target.y -= target.y - src->y >> 5;
|
|
target.z -= target.z - src->z >> 5;
|
|
if (firing && !result)
|
|
TriggerRicochetSpark(&target, LaraItem->pos.yRot, 8, 0);
|
|
}
|
|
}
|
|
|
|
if (DrawTarget && (hit || !result))
|
|
{
|
|
TriggerDynamicLight(target.x, target.y, target.z, 64, 255, 0, 0);
|
|
LaserSightActive = 1;
|
|
LaserSightX = target.x;
|
|
LaserSightY = target.y;
|
|
LaserSightZ = target.z;
|
|
}
|
|
|
|
return hit;
|
|
}
|
|
|
|
int ObjectOnLOS2(GAME_VECTOR* start, GAME_VECTOR* end, PHD_VECTOR* vec, MESH_INFO** mesh, GAME_OBJECT_ID priorityObject)
|
|
{
|
|
ClosestItem = NO_LOS_ITEM;
|
|
ClosestDist = SQUARE(end->x - start->x) + SQUARE(end->y - start->y) + SQUARE(end->z - start->z);
|
|
|
|
for (int r = 0; r < NumberLosRooms; ++r)
|
|
{
|
|
PHD_3DPOS pos;
|
|
auto room = &g_Level.Rooms[LosRooms[r]];
|
|
|
|
for (int m = 0; m < room->mesh.size(); m++)
|
|
{
|
|
auto meshp = &room->mesh[m];
|
|
|
|
if (meshp->flags & StaticMeshFlags::SM_VISIBLE)
|
|
{
|
|
pos.xPos = meshp->pos.xPos;
|
|
pos.yPos = meshp->pos.yPos;
|
|
pos.zPos = meshp->pos.zPos;
|
|
pos.yRot = meshp->pos.yRot;
|
|
|
|
if (DoRayBox(start, end, &StaticObjects[meshp->staticNumber].collisionBox, &pos, vec, -1 - meshp->staticNumber))
|
|
{
|
|
*mesh = meshp;
|
|
end->roomNumber = LosRooms[r];
|
|
}
|
|
}
|
|
}
|
|
|
|
for (short linknum = room->itemNumber; linknum != NO_ITEM; linknum = g_Level.Items[linknum].nextItem)
|
|
{
|
|
auto item = &g_Level.Items[linknum];
|
|
|
|
if ((item->status == ITEM_DEACTIVATED) || (item->status == ITEM_INVISIBLE))
|
|
continue;
|
|
|
|
if ((priorityObject != GAME_OBJECT_ID::ID_NO_OBJECT) && (item->objectNumber != priorityObject))
|
|
continue;
|
|
|
|
if ((item->objectNumber != ID_LARA) && (Objects[item->objectNumber].collision == NULL))
|
|
continue;
|
|
|
|
if ((item->objectNumber == ID_LARA) && (priorityObject != ID_LARA))
|
|
continue;
|
|
|
|
auto box = GetBoundsAccurate(item);
|
|
|
|
pos.xPos = item->pos.xPos;
|
|
pos.yPos = item->pos.yPos;
|
|
pos.zPos = item->pos.zPos;
|
|
pos.yRot = item->pos.yRot;
|
|
|
|
if (DoRayBox(start, end, box, &pos, vec, linknum))
|
|
{
|
|
end->roomNumber = LosRooms[r];
|
|
}
|
|
}
|
|
}
|
|
|
|
vec->x = ClosestCoord.x;
|
|
vec->y = ClosestCoord.y;
|
|
vec->z = ClosestCoord.z;
|
|
|
|
return ClosestItem;
|
|
}
|
|
|
|
int DoRayBox(GAME_VECTOR* start, GAME_VECTOR* end, BOUNDING_BOX* box, PHD_3DPOS* itemOrStaticPos, PHD_VECTOR* hitPos, short closesItemNumber)
|
|
{
|
|
// Ray
|
|
FXMVECTOR rayStart = { (float)start->x, (float)start->y, (float)start->z };
|
|
FXMVECTOR rayEnd = { (float)end->x, (float)end->y, (float)end->z };
|
|
FXMVECTOR rayDir = { (float)(end->x - start->x), (float)(end->y - start->y), (float)(end->z - start->z) };
|
|
XMVECTOR rayDirNormalized = XMVector3Normalize(rayDir);
|
|
|
|
// Create the bounding box for raw collision detection
|
|
auto obox = TO_DX_BBOX(*itemOrStaticPos, box);
|
|
|
|
// Get the collision with the bounding box
|
|
float distance;
|
|
bool collided = obox.Intersects(rayStart, rayDirNormalized, distance);
|
|
|
|
// If no collision happened, then don't test spheres
|
|
if (!collided)
|
|
return 0;
|
|
|
|
// Get the raw collision point
|
|
Vector3 collidedPoint = rayStart + distance * rayDirNormalized;
|
|
hitPos->x = collidedPoint.x - itemOrStaticPos->xPos;
|
|
hitPos->y = collidedPoint.y - itemOrStaticPos->yPos;
|
|
hitPos->z = collidedPoint.z - itemOrStaticPos->zPos;
|
|
|
|
// Now in the case of items we need to test single spheres
|
|
MESH* meshPtr = NULL;
|
|
int bit = 0;
|
|
int sp = -2;
|
|
float minDistance = std::numeric_limits<float>::max();
|
|
|
|
int action = TrInput & IN_ACTION;
|
|
|
|
if (closesItemNumber < 0)
|
|
{
|
|
// Static meshes don't require further tests
|
|
sp = -1;
|
|
minDistance = distance;
|
|
}
|
|
else
|
|
{
|
|
// For items instead we need to test spheres
|
|
ITEM_INFO* item = &g_Level.Items[closesItemNumber];
|
|
OBJECT_INFO* obj = &Objects[item->objectNumber];
|
|
|
|
// Get the ransformed sphere of meshes
|
|
GetSpheres(item, CreatureSpheres, SPHERES_SPACE_WORLD, Matrix::Identity);
|
|
SPHERE spheres[34];
|
|
memcpy(spheres, CreatureSpheres, sizeof(SPHERE) * 34);
|
|
if (obj->nmeshes <= 0)
|
|
return 0;
|
|
|
|
meshPtr = &g_Level.Meshes[obj->meshIndex];
|
|
|
|
for (int i = 0; i < obj->nmeshes; i++)
|
|
{
|
|
// If mesh is visibile...
|
|
if (item->meshBits & (1 << i))
|
|
{
|
|
SPHERE* sphere = &CreatureSpheres[i];
|
|
|
|
// TODO: this approach is the correct one but, again, Core's math is a mistery and this test was meant
|
|
// to fail delberately in some way. I've so added again Core's legacy test for allowing the current game logic
|
|
// but after more testing we should trash it in the future and restore the new way.
|
|
|
|
#if 0
|
|
// Create the bounding sphere and test it against the ray
|
|
BoundingSphere sph = BoundingSphere(Vector3(sphere->x, sphere->y, sphere->z), sphere->r);
|
|
float newDist;
|
|
if (sph.Intersects(rayStart, rayDirNormalized, newDist))
|
|
{
|
|
// HACK: Core seems to take in account for distance not the real hit point but the centre of the sphere.
|
|
// This can work well for example for GUARDIAN because the head sphere is so big that would always be hit
|
|
// and eyes would not be destroyed.
|
|
newDist = sqrt(SQUARE(sphere->x - start->x) + SQUARE(sphere->y - start->y) + SQUARE(sphere->z - start->z));
|
|
|
|
// Test for min distance
|
|
if (newDist < minDistance)
|
|
{
|
|
minDistance = newDist;
|
|
meshPtr = &g_Level.Meshes[obj->meshIndex + i];
|
|
bit = 1 << i;
|
|
sp = i;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
PHD_VECTOR p[4];
|
|
|
|
p[1].x = start->x;
|
|
p[1].y = start->y;
|
|
p[1].z = start->z;
|
|
p[2].x = end->x;
|
|
p[2].y = end->y;
|
|
p[2].z = end->z;
|
|
p[3].x = sphere->x;
|
|
p[3].y = sphere->y;
|
|
p[3].z = sphere->z;
|
|
|
|
int r0 = (p[3].x - p[1].x) * (p[2].x - p[1].x) +
|
|
(p[3].y - p[1].y) * (p[2].y - p[1].y) +
|
|
(p[3].z - p[1].z) * (p[2].z - p[1].z);
|
|
|
|
int r1 = SQUARE(p[2].x - p[1].x) +
|
|
SQUARE(p[2].y - p[1].y) +
|
|
SQUARE(p[2].z - p[1].z);
|
|
|
|
if (((r0 < 0 && r1 < 0)
|
|
|| (r1 > 0 && r0 > 0))
|
|
&& (abs(r0) <= abs(r1)))
|
|
{
|
|
r1 >>= 16;
|
|
if (r1)
|
|
r0 /= r1;
|
|
else
|
|
r0 = 0;
|
|
|
|
p[0].x = p[1].x + ((r0 * (p[2].x - p[1].x)) >> 16);
|
|
p[0].y = p[1].y + ((r0 * (p[2].y - p[1].y)) >> 16);
|
|
p[0].z = p[1].z + ((r0 * (p[2].z - p[1].z)) >> 16);
|
|
|
|
int dx = p[0].x - p[3].x;
|
|
int dy = p[0].y - p[3].y;
|
|
int dz = p[0].z - p[3].z;
|
|
|
|
int distance = dx + dy + dz;
|
|
|
|
if (distance < SQUARE(sphere->r))
|
|
{
|
|
dx = SQUARE(sphere->x - start->x);
|
|
dy = SQUARE(sphere->y - start->y);
|
|
dz = SQUARE(sphere->z - start->z);
|
|
|
|
distance = dx + dy + dz;
|
|
|
|
if (distance < minDistance)
|
|
{
|
|
minDistance = distance;
|
|
meshPtr = &g_Level.Meshes[obj->meshIndex + i];
|
|
bit = 1 << i;
|
|
sp = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (sp < -1)
|
|
return 0;
|
|
}
|
|
|
|
if (distance >= ClosestDist)
|
|
return 0;
|
|
|
|
// Setup test result
|
|
ClosestCoord.x = hitPos->x + itemOrStaticPos->xPos;
|
|
ClosestCoord.y = hitPos->y + itemOrStaticPos->yPos;
|
|
ClosestCoord.z = hitPos->z + itemOrStaticPos->zPos;
|
|
ClosestDist = distance;
|
|
ClosestItem = closesItemNumber;
|
|
|
|
// If collided object is an item, then setup the shatter item data struct
|
|
if (sp >= 0)
|
|
{
|
|
ITEM_INFO* item = &g_Level.Items[closesItemNumber];
|
|
|
|
GetSpheres(item, CreatureSpheres, SPHERES_SPACE_WORLD | SPHERES_SPACE_BONE_ORIGIN, Matrix::Identity);
|
|
|
|
ShatterItem.yRot = item->pos.yRot;
|
|
ShatterItem.meshp = meshPtr;
|
|
ShatterItem.sphere.x = CreatureSpheres[sp].x;
|
|
ShatterItem.sphere.y = CreatureSpheres[sp].y;
|
|
ShatterItem.sphere.z = CreatureSpheres[sp].z;
|
|
ShatterItem.bit = bit;
|
|
ShatterItem.flags = 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int LOS(GAME_VECTOR* start, GAME_VECTOR* end)
|
|
{
|
|
int result1, result2;
|
|
|
|
end->roomNumber = start->roomNumber;
|
|
if (abs(end->z - start->z) > abs(end->x - start->x))
|
|
{
|
|
result1 = xLOS(start, end);
|
|
result2 = zLOS(start, end);
|
|
}
|
|
else
|
|
{
|
|
result1 = zLOS(start, end);
|
|
result2 = xLOS(start, end);
|
|
}
|
|
if (result2)
|
|
{
|
|
GetFloor(end->x, end->y, end->z, &end->roomNumber);
|
|
if (ClipTarget(start, end) && result1 == 1 && result2 == 1)
|
|
{
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int xLOS(GAME_VECTOR* start, GAME_VECTOR* end)
|
|
{
|
|
int dx, dy, dz, x, y, z, flag;
|
|
short room, room2;
|
|
FLOOR_INFO* floor;
|
|
|
|
dx = end->x - start->x;
|
|
if (!dx)
|
|
return 1;
|
|
dy = (end->y - start->y << 10) / dx;
|
|
dz = (end->z - start->z << 10) / dx;
|
|
NumberLosRooms = 1;
|
|
LosRooms[0] = start->roomNumber;
|
|
room = start->roomNumber;
|
|
room2 = start->roomNumber;
|
|
flag = 1;
|
|
if (dx < 0)
|
|
{
|
|
x = start->x & 0xFFFFFC00;
|
|
y = ((x - start->x) * dy >> 10) + start->y;
|
|
z = ((x - start->x) * dz >> 10) + start->z;
|
|
while (x > end->x)
|
|
{
|
|
floor = GetFloor(x, y, z, &room);
|
|
if (room != room2)
|
|
{
|
|
room2 = room;
|
|
LosRooms[NumberLosRooms] = room;
|
|
++NumberLosRooms;
|
|
}
|
|
if (y > GetFloorHeight(floor, x, y, z) || y < GetCeiling(floor, x, y, z))
|
|
{
|
|
flag = -1;
|
|
break;
|
|
}
|
|
floor = GetFloor(x - 1, y, z, &room);
|
|
if (room != room2)
|
|
{
|
|
room2 = room;
|
|
LosRooms[NumberLosRooms] = room;
|
|
++NumberLosRooms;
|
|
}
|
|
if (y > GetFloorHeight(floor, x - 1, y, z) || y < GetCeiling(floor, x - 1, y, z))
|
|
{
|
|
flag = 0;
|
|
break;
|
|
}
|
|
x -= 1024;
|
|
y -= dy;
|
|
z -= dz;
|
|
}
|
|
if (flag != 1)
|
|
{
|
|
end->x = x;
|
|
end->y = y;
|
|
end->z = z;
|
|
}
|
|
end->roomNumber = flag ? room : room2;
|
|
}
|
|
else
|
|
{
|
|
x = start->x | 0x3FF;
|
|
y = ((x - start->x) * dy >> 10) + start->y;
|
|
z = ((x - start->x) * dz >> 10) + start->z;
|
|
while (x < end->x)
|
|
{
|
|
floor = GetFloor(x, y, z, &room);
|
|
if (room != room2)
|
|
{
|
|
room2 = room;
|
|
LosRooms[NumberLosRooms] = room;
|
|
++NumberLosRooms;
|
|
}
|
|
if (y > GetFloorHeight(floor, x, y, z) || y < GetCeiling(floor, x, y, z))
|
|
{
|
|
flag = -1;
|
|
break;
|
|
}
|
|
floor = GetFloor(x + 1, y, z, &room);
|
|
if (room != room2)
|
|
{
|
|
room2 = room;
|
|
LosRooms[NumberLosRooms] = room;
|
|
++NumberLosRooms;
|
|
}
|
|
if (y > GetFloorHeight(floor, x + 1, y, z) || y < GetCeiling(floor, x + 1, y, z))
|
|
{
|
|
flag = 0;
|
|
break;
|
|
}
|
|
x += 1024;
|
|
y += dy;
|
|
z += dz;
|
|
}
|
|
if (flag != 1)
|
|
{
|
|
end->x = x;
|
|
end->y = y;
|
|
end->z = z;
|
|
}
|
|
end->roomNumber = flag ? room : room2;
|
|
}
|
|
return flag;
|
|
}
|
|
|
|
int zLOS(GAME_VECTOR* start, GAME_VECTOR* end)
|
|
{
|
|
int dx, dy, dz, x, y, z, flag;
|
|
short room, room2;
|
|
FLOOR_INFO* floor;
|
|
|
|
dz = end->z - start->z;
|
|
if (!dz)
|
|
return 1;
|
|
dx = (end->x - start->x << 10) / dz;
|
|
dy = (end->y - start->y << 10) / dz;
|
|
NumberLosRooms = 1;
|
|
LosRooms[0] = start->roomNumber;
|
|
room = start->roomNumber;
|
|
room2 = start->roomNumber;
|
|
flag = 1;
|
|
if (dz < 0)
|
|
{
|
|
z = start->z & 0xFFFFFC00;
|
|
x = ((z - start->z) * dx >> 10) + start->x;
|
|
y = ((z - start->z) * dy >> 10) + start->y;
|
|
while (z > end->z)
|
|
{
|
|
floor = GetFloor(x, y, z, &room);
|
|
if (room != room2)
|
|
{
|
|
room2 = room;
|
|
LosRooms[NumberLosRooms] = room;
|
|
++NumberLosRooms;
|
|
}
|
|
if (y > GetFloorHeight(floor, x, y, z) || y < GetCeiling(floor, x, y, z))
|
|
{
|
|
flag = -1;
|
|
break;
|
|
}
|
|
floor = GetFloor(x, y, z - 1, &room);
|
|
if (room != room2)
|
|
{
|
|
room2 = room;
|
|
LosRooms[NumberLosRooms] = room;
|
|
++NumberLosRooms;
|
|
}
|
|
if (y > GetFloorHeight(floor, x, y, z - 1) || y < GetCeiling(floor, x, y, z - 1))
|
|
{
|
|
flag = 0;
|
|
break;
|
|
}
|
|
z -= 1024;
|
|
x -= dx;
|
|
y -= dy;
|
|
}
|
|
if (flag != 1)
|
|
{
|
|
end->x = x;
|
|
end->y = y;
|
|
end->z = z;
|
|
}
|
|
end->roomNumber = flag ? room : room2;
|
|
}
|
|
else
|
|
{
|
|
z = start->z | 0x3FF;
|
|
x = ((z - start->z) * dx >> 10) + start->x;
|
|
y = ((z - start->z) * dy >> 10) + start->y;
|
|
while (z < end->z)
|
|
{
|
|
floor = GetFloor(x, y, z, &room);
|
|
if (room != room2)
|
|
{
|
|
room2 = room;
|
|
LosRooms[NumberLosRooms] = room;
|
|
++NumberLosRooms;
|
|
}
|
|
if (y > GetFloorHeight(floor, x, y, z) || y < GetCeiling(floor, x, y, z))
|
|
{
|
|
flag = -1;
|
|
break;
|
|
}
|
|
floor = GetFloor(x, y, z + 1, &room);
|
|
if (room != room2)
|
|
{
|
|
room2 = room;
|
|
LosRooms[NumberLosRooms] = room;
|
|
++NumberLosRooms;
|
|
}
|
|
if (y > GetFloorHeight(floor, x, y, z + 1) || y < GetCeiling(floor, x, y, z + 1))
|
|
{
|
|
flag = 0;
|
|
break;
|
|
}
|
|
z += 1024;
|
|
x += dx;
|
|
y += dy;
|
|
}
|
|
if (flag != 1)
|
|
{
|
|
end->x = x;
|
|
end->y = y;
|
|
end->z = z;
|
|
}
|
|
end->roomNumber = flag ? room : room2;
|
|
}
|
|
return flag;
|
|
}
|